Continuous conveyer.



H. A. CARPENTER.

CONTINUOUS CONVEYER. APPLICATION FILED SEPT 30, 1910.

1,144,823. Patented June 22, 1915.

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THE NORRIS PETERS 50.. PHOTO-LITHQ, WASHINGTON D. C

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HE Y A. CARPENTER, or sRWIoKLRY, PENNSYLVANIA, ASSIGNOR T0 RITER-GONLEY "MANUFACTURING COMPANY, or PITTSBURGH, rENNsYLVANIA, A CORPORATION OF NEW JERSEY.

CONTINUOUS CONVEYER.

Specification of Letters Patent.

Patented June 22, 1915..

Application filed September so, 1910. Serial No. 584,699.

To all whom it may concern Be it known that I, HENRY A. CARPENTER, a'citizen of the United States, residing at Sewickley, inthe county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Continuous Conveyers, of which improvement the following isa specification.

" My invention relates to improvements in endless conveyers, and more particularly the general llnk'and drive structural features thereof.

The invention is designed more particularly for use in gas retort houses and par- .1 ticularly in connection with the transfer of "coke asit is discharged from the retorts to a suitable point. As will be understood, the retort houses of gas plants of considerable capacity are of considerable length while the coke discharged from the retorts is generally incandescent. As a result, an endless conveyor adapted for this purpose must have certain characteristics to provide for efficient service. As examples, the conveyer must be relatively light in weight cross-sectionally in order that the tendency to sag under its own weight will be reduced to aminimum; the carrying surface should be substantially flat to prevent the coke from being banked up thereon; the conveyer should not be so rigid in arrangement as to tend tobreak the coke as it falls onto the conveyer; the conveyer should be of a material which will not be injuriously affected by the heat of the incandescent coke. To meet these conditions the conveyer is formed in a particular manner as to link construction, and the driving means is so formed as to provide for placing the driving strain substantially throughout the width of the conveyor.

To these and other ends, the nature of which will be readily understood as the invention is hereinafter disclosed, said inven- 'lSlOIl consists in the improved constructlon and combination of parts hereinafter fully described, illustrated in the accompanying drawings, and more particularly pointed out 7 in the appended claims.

In the accompanying drawings, in which similar reference characters indicate similar in any suitable manner.

parts in each of the views, Figure 1 is a side elevation of a portion of the conveyer and a driving sprocket, a portion of the trough being shown in section. Fig. 2 is a sectional view on line IIII of Fig. 1. Fig. 3 is an edge view of a portion of the conveyer, parts being broken away. Fig. 4 is rods, preferably headed. The bands are preferably ofrelatively thin sheet metal; the ends of a band may be secured together in suitable manner, as by rivets. The preferred arrangement is shown in Figs. 3 and 4, in which 4, 4, 4, 4 indicated two pairs of bands, each pair being alined laterally of the conveyer, with corresponding bands of the pairs arranged in alinement longitudinally of the conveyer. Pairs of bands are spaced apart laterally by an endless band 7,

corresponding end portions of a pair of bands and an end portion of the intervening band 7 being mounted on a pin or rod 10, preferably headed, as at 11, a separate rod or pin being provided for each end portion of alined bands 7 of the conveyor. The end portions of bands partially encircle the pins or rods so that the adjacent pairs of bands 4 and band 7 will, under driving stress, provide a practically taut construction. This arrangement has the effect of providing inclosed spaces 9 between successive bands 7 longitudinally of the conveyer, and spaces 6 between adjacent pairs of bands 4, these latter spaces being open opposite the edges of theband 7 The conveyor is adapted to operate in connection with driving members of the character shown in Figs. 1 and 2, being in the form of sprocket wheels 1 adapted to be mounted on a shaft, not shown, and driven As shown, the wheel is provided with teeth arranged staggored, positioned to cooperate with the several spaces of the conveyer, the teeth 2 entering spaces 9, and teeth 3 extending into between teeth, so that in use the teeth preferably do not project beyond the face of the conveyer to any material extent. As shown, the bands are of comparatively short length, so that the teeth 3 of a lateral row and a tooth 2 are generally active as driving members at the same time, a fact which, coupled with the arrangement of the bands, is of advantage in that the driving pressure on the conveyer is positive throughout the width of the conveyer, although the bands themselves are not positively held in position on the pins or rods as would be provided by causing a band to entirely surround a pin or rod. This provides for flexibility as well as efficiency, especially when employed for the purpose indicated, the conveyer readily adapting itself to the effects of expansion and contraction without materially aifecting the general feature of a conveying surface free from projections, producing practically a plane surface. The bands are preferably of sufficient width to provide a proper distribution of driving stress. shown as of substantially equal width to the combined width of the pair of bands 4:. As

will be understood, the difference in width of the spaces 6 and 7 does not limit the lateral width of the teeth 8, the spaces 6 being open in a direction which permits such width to be greater than the width of the spaces if desired.

It will be obvious that the particular structure and arrangement of parts is such as to be especially useful in connection with an installation for the conveying of the discharged incandescent coke. As the coke is discharged from the retort, it falls on to the conveyer, which, owing to the particular construction, is not so rigid as to causethe coke to be materially broken under the shock of meeting the conveyer; consequently a minimum amount of breeze is formed. And since the conveying surface is in the form of relatively thin bands, the heat transmitted to the bands by the coke will be quickly dissipated, while the band form and particular manner of mounting on the pins or rods will provide for eflicient service under the efi'ects of expansion and contraction to which the conveyer is especially subject under working conditions.

' 12 indicates a trough through which the conveyer travels arranged relatively to the retorts, and which serves to direct the coke onto the conveyer surface.

Having thus described my invention, what I claim as new is:

1. In a conveyer adapted to accommodate In the drawings, the bands 7 are for heat expansion and contraction, two pairs of sheet-metal relatively flat endless bands, each pair being alined laterally with corresponding bands of a pair alined longitudinally of the conveyer, pins or rods extending transversely of the conveyer through the ends of said bands, and a sheetmetal relatively flat endless connecting band mounted on the pin of opposing ends of the pairs of bands between and forming a spacing member for each of said pairs, each of said bands having a width less than the width of the conveyer, the spaces at the sides and in advance and in rear of the connecting band forming tooth-reserving spaces.

2. In a conveyer adapted to accommodate for heatfexpansion and contraction, two pairs of sheet-metal relatively flat endless bands, each pair being alined longitudinally of the conveyer, pins or rods extending transversely of the conveyer through the ends of said bands, and-a sheet-metal relatively fiat endless connecting bandmounted on the pins of opposing ends of the pairs of bands between and forminga spacing member for each of said pairs, each of said bands having a width less than the width of r the conveyer, the spaces between the oppos ing ends of longitudinally alined bands of the pairs being open opposite the connecting band, the bands of a pair being of a width to permit said open spaces to receive the teeth of a driving member. I

3. In a conveyer adapted to accommodate for heat expansion and contraction, two pairs of sheet-metal relatively flat endless bands, each pair being alined laterally with corresponding bands of a pair alined longitudinally of the conveyer, pins or rods extending transversely of the conveyer through the ends of said bands, and a sheetmetal relatively flat endless connecting band mounted on the pinsof opposing the ends of the pairs of bands between and forming a spacing member for each of said pairs, each of said bands having a width less than the width of the conveyer, the spaces at the sides and in advance and in rear ofthe connecting band forming tooth-receiving spaces, in combmation with a drlvlng member havmg teeth corresponding in relative positions to the teetlnreceiving spaces of the conveyer, the contact driving stress extending sub stantially throughout the lateral width of the conveyer. p

4. In a conveyer adapted to accommodate for heat expansion and contraction, two pairs of sheet-metal relatively flat endless bands, each pair being alined laterally with corresponding bands of a pair alined longitudinally of the conveyer, pins 'or rods extending transversely of the conveyer through the ends of said bands,- and a sheetmetal relatively flat endless connecting band mounted onthe pins of opposing ends of the pairs of bands between and forming a In testimony whereof, I have hereunto spacing member for each of said pairs, each signed my name in the presence of two subof said bands having a Width less than the scribing Witnesses.

Width of the conveyer, the contact of pin HENRY A. CARPENTER. and band being insuflicient to prevent re- In the presence oflease of contact upon placing slack in the CLARENCE A. WILLIAMS,

conveyer. JOHN H. RONEY.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of latenta,

Washington, D. 0.

It is hereby certified that in Letters Patent No. 1,144,323, granted June 22, 1915,

upon the application of Henry A. Carpenter, of Sewickley, Pennsylvania, for an improvement in Continuous Conveyers, an error appears in the printed specification requiring correction as follows: Page 2, line 80, for the compound Word tooth-reserving read tooth-receiving; and that the said Letters Patent should be read With this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 27th day of July, A. D., 1915.

[SEAL] R. F. WHITEHEAD,

Acting Commissioner of Patents. 

